206 XCVIII. ACANTHACEiE (CLARKE). [JusHcia. 



a single longitudinal row of round spots, not tubercles. Capsule 1 in. 

 long, 4-seeded, pubescent ; stalk J in. long, solid ; seeds tubercular- 

 scabrous. — Adhatoda paniculata, Benth. in Hook. Niger Fl. 482. 

 Dicvernoia paniculata, Lindau in Engl. Jahrb. xx. 43, and in Engl. & 

 Prantl, Pflanzenfam. iv. 3 B. 339. 



Upper Guinea. Cameroons, Freuss, 1350! Fernando Po, Vogel, 144 ! Mann, 63 ! 



Var. contracta, C. B. Clarke. Panicle branches shortened, hardly exceeding 

 1 in, in length : floral leaves (all but the lowest) reduced, \ in. long, linear. Capsule 1 in. 

 long, 4-seeded ; stalk exceeding \ in. in length, narrow, solid ; seeds tubercular. 



Upper Guinea. Cameroous: Efulen, ^a^f*, 367 ! Jensoki, 5«cMo?z .' Lolodorf, 

 Staudt, 418 : 



Kower Guinea. Gaboon : Munda ; Sibange Farm, Soyaux, 399 ! 



(53. J. pyramidatay C. B. Clarke. Upper part of the stem 

 viscous rusty with many-celled hairs. Leaves broadly ovate or obovate, 

 rusty hairy on the'midrib beneath. Panicles 8 by | in.; floral leaves 

 ^ in. long, linear. Corolla light-red (G. Mann) ; otherwise as J. laxa. — 

 Duvernoia pi/ramidata, Lindau in Engl. Jahrb. xxii. 124. 



Upper Guinea. Cameroons : Yaunde, Zenker Sf Staudt, 460 ! Bipinde, 

 Zenker, 1047 ! 



Ibower Guinea. Gaboon : Sierra del Crystal, Mann, 1671 ! 



These examples match one another closely, and appear distinct enough from typical 

 J. laxa, but J. laxa, var. contracta, is about half way between. 



64. J. extensa, T. Anders, in Joum. Linn. Soc. vii. 44. Panicle 

 6-10 in. long, oblong or ovate. Calyx hairy. Filaments minutely 

 hairy; pollen ellipsoid, banded, with 2 stopples, and one row of 

 depressed tubercles on each side of each stopple. Ovary shaggy. 

 Capsule rather shorter than that of J. laxa, shortly hairy all over. — 

 S. Moore in Journ. Bot. 1880, 341. Duvernoia extensa, Lindau in 

 Engl. Pfl. Ost-Afr. C. 372. D. Stuhhnanni, Lindau in Engl. Jahrb. 

 XX. 43, and in Engl. & Prantl, Pflanzenfam. iv. 3 B. 339. 



Upper Guinea. Sierra Leone : near Kambia, Scott-Elliot, 4210 ! Ashanti, 

 Cummins, 6! Lagos: Eppah, Barter, 3301! Musin Road, Millen, 21 of 1892 collec- 

 tion I near Lagos, Rotvland, 12 ! 34 ! Cross River, Johnston ' 



Kower Guinea. Angola, Welwitsch, 1248 ! 



Mozamb. Bist. Between Tanganyika and Victoria Nyanza, 3000 ft., Stuht- 

 mann, 2953 ! 



The breadth and degree of compounding of the panicle varies considerably. The 

 panicle is more hairy than that of J. laxa, but the mature leaves are often shining 

 glabrous. 



65. J. cordata, T. Anders, in Journ. Linn. Soc. vii. 44. Shrub, 

 nearly glabrous except the flowers ; branches woody. Leaves 1 by 

 \ in., ovate, subsessile ; base truncate or cordate. Peduncles J-IJ in. 

 long, rigid, angular, obliquely erect, from the lower and upper axils ; 

 flowers 1-3, clustered in a congested cyme at the apex of a peduncle, 

 bracts smaller than the sepals. Sepals 5, equal, ^ in. long, lanceolate; 

 minutely and sparsely pubescent. Corolla-tube scarcely \ in. long; 



